Worldwide Air Post stamps and postal history, Zeppelin Flight items, philatelic rarities of the World. Part 1

Worldwide Air Post Stamps and Postal History - Vatican City

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Start price: $100

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1931 (January 15-17), Special Flight Rome – Milan, Balbo postcard bearing mixed franking by Papal Arms 25c dark blue on light blue network and Italian Virgil 50c brown, met altogether 75c postal rate (25c – postcard rate, 50c – Air Post fee), cancelled by Vatican City and Rome (15.1.31) postal markings, two Balbo etiquettes is alongside, ”Aeroporto Taliedo. Milano. 17.1.31” arrival ds, VF, 58 items flown, Est. $150-$200, Sc. #4